An Israeli entrepreneur, currently involved in a legal dispute with Facebook, has legally changed his name to Mark Zuckerberg, much to the fury of the Facebook co-founder himself.

After Facebook filed a suit against the entrepreneur, Rotem Guez (sorry, 'Mark Zuckerberg') decided to get revenge, by becoming a thorn in the side of the social networking giant.

In apparent violation of Facebook's terms of service, his 'Like button' emporium was closed down. Drawing on the popularity of the 'Like' function, he sold advertisers fans for their company pages to help expand their online presence and influence social marketing.

Complete with his own Facebook fan page, 'Mark Zuckerberg' collected several thousand 'Likes' himself. Other Zuckerberg's exist, but this is the first to be known to have changed his name legally.

More than this move being ironic and highly amusing, it does touch on the basic facet of Facebook: authentic identity.

On deciding to change his name, he was able to leave his 'Facebook' identity behind. This could be a lesson to those about to enter the workplace, particularly in relation to the new Timeline rollout.

Your online profile can give audiences far more information than you release on a resume. Prospective employers can find out far more about you from your social media trail than the job application form itself.

Using a fake identity is against Facebook's terms of service, but there are few ways to prove exactly when fake profiles are created -- an exploit used by celebrities, company promoters, and public figures.

Perhaps the general public will begin to use this 'feature' in order to hide information they would rather employers' don't see.